Midday nap might work wondersto boost your productivity, alertness

Nappers are on to something: A snooze in the middle of the day can restore alertness, enhance performance and reduce the likelihood of mistakes and accidents, the National Sleep Foundation says.

Fortunately, the best naps are short — only about 20 to 30 minutes. Even a five-minute doze on the bus can be rejuvenating. But any nap longer than 30 minutes could interfere with your nighttime routine.